John mcphail



J. M-QPHAIL.

(No Model.)

SPEGTAGLBS.

Patented Dec. 3, 1889.

INVENTOR WITNESSES IL. PETERS. PhebLiHwp-uhcr, wuun iw n. c.

U ITED STATES PATENT OFFICE.

JOHN MCPHAIL, OF LIVERPOOL, COUNTY OF LANCASTER, ENGLAND.

SPECTACLES.

SPECIFICATION forming part of Letters Patent No. 416,485, dated December3, 1889.

Application filed July 30, 1889. $erial No. 319,160. (No model.)

To aZZ whom it may concern..-

Be it known that I, JOHN MOPHAIL, a subj ect of the Queen of GreatBritain and Ireland,

residing at Liverpool, in the county of Lancaster, England, haveinvented new and useful improvements in and connected with Spectacles,Eyeglasses, andv Pince Nez, of which the following is a specification.

According to my invention there is provided an elastic bearing on thatpai t of the frame of spectacles, eyeglasses, or pince-nez that grips orrests on the nose of the user. This elastic bearing is of such a naturethat it will adapt itself to the contour of the nose and will give alarger bearing-surface than the ordinary plaque. For the above purpose Iemploy a flat spirally-coiled Wire having milled edges and so connectedto each side of the frame of the glasses asto form an elastic bearingwhich will adapt itself to the contour of the nose of the user.

The accompanying drawings, which make a part of this specification,serve to illustrate my invention.

The drawings are marked with letters of reference corresponding withthose used in the following explanation, and like letters are used todenote like or corresponding parts throughout the several figures.

In the drawings, Figure 1 is an elevation of a pair of eyeglasses orpince-nez with the improvements according to my invention appliedthereto. This figure shows-the normal state of the pince-nez beforeapplication to the nose of the user. Fig. 2 shows the state of thepince-nez when on the nose of the user. Fig. 3 is an enlarged View of aportion of the eyeglass or pince-nez with my improvements appliedthereto. Fig. 4 is an end-view of the spirally-coiled wire which formsthe hearing or plaque for the nose. Fig.5 is an enlarged viewillustrating the construction of the spirally-coiled wire. Fig. 6 is anend View of the wire coil. Fig. 7 is an enlarged section of the wire.Figs. 8 and 9 illustrate in a normal and extended state, respectively,the application of my invention to pince-nez havinga straight expandingbridge and hinged adjustable nosebearings or plaques.

It will be seen that Figs. 1, 2, 8, and 9 of the drawings illustrateknown forms of eyeglasses or pince-nez with my improvements appliedthereto.

According to my invention I make the hearing or plaque of an elasticmedium, as illustrated at a, Figs. 1 and 2, so that when in position onthe nose it will yield, as shown at a, Fig. 2. To provide thespiral-wire coil with a gripping-surface it is drawn with the sectionshown at Fig. 7nan1ely, with a hollowed-out face having projecting edges1). These edges 1) are then milled, and thus a rough surface is formedon the outside of the wire. The wire is then coiled on a mandrel intothe form shown at Figs. 5 and 6. To attach thespiral coil to the frame Iprovide the usual brackets c c, with short fiat springs d d. Thesesprings (Z (Z enter and slip between the coils of the wire, asillustrated in Figs. 3 and 4. These springs d d keep the spiral coil inits place and prevent side motion. The spiral wire is attached to thesprings cl d by passing the ends of the wire through holes 9 in thesprings d d, as shown at Fig. 4:. The spiral coil is by preference madeof gold or silver wire, or a metal or alloy that will not readilytarnish.

The spiral coiled wire plaques a, above described, can be applied to anyform of folding or rigid eyeglasses, spectacles, or pince-nez whichadhere to the nose by friction and spring. For example, they can beapplied to the form of eyeglasses shown at Figs. 8 and 9. In this casethe plaques are hinged to the frame of the glasses-and the coiled wireis attached to the plaques by the springs d d. The normal form of thecoiled Wire is shown at Fig. 8, and Fig. 9 shows the form taken by thecoiled wire when the eyeglasses are in use on the nose of the wearer.

In the foregoing description of my invention I have described itsapplication more particularly to that type of eyeglasses which are kepton the nose by the action of a springbridge; but I would have itunderstood that my invention is also applicable to other types ofeyeglasses, such as spectacles in which the bridge or connecting-barrests on the nose of the user. In this case the frame which contains theglasses can be provided with the spiral coiled wire plaques a, as abovedescribed in reference to Figs. 1 and 2, or a secondary bridgeconsisting of a spiral coiled wire can be added under the main bridge orconnectingbar. This secondary bridge is connected at each end to theframe of the glasses and forms an elastic pad, which rests on the noseof the user and takes the weight of the spectacles.

Although I have described a coiled wire as the best medium of which tomake the elastic bearings or plaques, I would have it understood thatother elastic medium may be used.

By the use of elastic bearings or plaques, above described and accordingto my invention, a much lighter pinching-spring can be used, and therebythe weight of the eyeglasses is reduced, and the pinch on the nose ofthe user is lessened; also, by the use of the elastic hearing or plaquesa the pressure is spread over the greatest possible surface of the noseconsistent with neatness of form.

Having now particularly described 111d. ascertained the nature of mysaid invention, and in what manner the same is to be performed, Ideclare that what I claim is 1. I11 spectacles, eyeglasses, andpince-nez, the combination, with the frame, of an elastic nose-bearingconsisting of coiled wire a, provided with milled edges 11,substantially as described.

2. In spectacles, eyeglasses, and pince-nez, the combination, with theframe thereof, of an elastic nose-bearing comprising the spirallycoiledwires a, having milled edges 12 and re- Jonn MoPI-IAIL.

Witnesses:

FREDERICK JOHN CHEESBROUGH, JAM S ANDREW CONBROUGH,

Both of 15 Water Street. Lire/pool.

